@Laura Casner Do you know how far it is to the water table?

The new GC will likely want to inspect the previous GC's work to ensure it meets quality standards and to identify any potential issues.

If you're using standardized or rule-of-thumb metrics (for example, many out of state investors do this for expediency), you may find that tax and insurance expenses are much higher than anticipated. 

Thats not surprising since there is no electricity or hot water.

Pros could be: Clean water + tub for each guest; on a well, so no water waste concern; can make it design-y + cute; can be used winter (hot water) + summer (cool water); goes better with forest location of the home than a traditional hot tub might; will hold same number of guests as hot tub would (2 people in each tub).In researching I have seen some people on Airbnb have these checked in amenities as 'hot tub', some 'private hot tub'.

There's no one home to put the fire out or turn the water off if a pipe burst.

On REOs, HUDs, VAs and other you can get inside but most of the time the utilities are shut off, and heat has been off for a long time at least one winter, in some cases more than one winter and are possible freeze damage to water pipes, hot water heat pipes and even boilers/hotwater heaters. 

Cool seal does not save the overhang/drip edge and you will eventually get water down the walls.

No water is leaking into the unit, the ceiling tiles just get a slight discoloration.

The downpayment was through my savings and the mortgage is a standard rental property loan.